A conduit run must pass over a pipe and then over a rectangular duct. This will require a total of_________.

In scenarios where a conduit needs to navigate over obstacles like a pipe and a rectangular duct, the number of bends required depends on the layout and the angles involved in making the necessary turns.

To visualize: when a conduit runs over a pipe, a bend is required to elevate it above the pipe. After passing over the pipe, another bend is typically needed to adjust the conduit to go laterally toward the next obstacle or duct. Once the conduit reaches the rectangular duct, additional bends may again be necessary, depending on how the conduit intersects or aligns with the duct.

In this case, determining the total number of bends would involve considering the initial elevation over the pipe and the adjustments required both when passing over the pipe and towards the duct, usually resulting in multiple bends. The total estimated bends can add up significantly, especially in a more complex installation involving multiple obstacles. Seven bends likely accounts for the necessary adjustment turns to effectively and safely route the conduit past both obstacles, ensuring no strain on the materials or risk of improper installation.

Thus, the correct answer indicates a careful consideration of the installation layout, leading to the conclusion that seven bends are necessary for compliance and efficiency in the installation.